1910] THAXTER—CHILEAN FUNGI 441 
Alni. Indeed it appears to be closer to the typical form of this 
species than most of the varieties of the latter. The habitat, 
however, is certainly remarkable; and although I made a special 
effort to find even the Oidium apart from the Aecidium, I never 
succeeded in doing so. 
I find but one other species of this family recorded from Punta 
Arenas, in fact the only other species, I believe, which has been 
hitherto recorded from this locality. This was found by SpeGazzIN1 
on Ribes magellanicum and is mentioned in his Fungi Patagonici 
(p. 34). It was also found by him on the same host in Tierra del 
Fuego and described as Phyllactinia antarctica Speg., a name which 
is not recognized in SatMon’s Monograph, where it is placed as a 
synonym of P. Corylea. Although Ribes magellanicum was not 
uncommon along the ravine of the Rio de las Minas, I did not 
discover this Phyllactinia, not being aware at the time that it 
should be sought for on this host. 
HArvARD UNIVERSITY 
EXPLANATION OF PLATES XVIII AND XIX 
The figures were drawn with camera lucida from preparations, in glycerin, 
of sections cut from dried material, and are reduced about one-fourth. The 
following combinations of objectives and oculars were used in making the 
Wings: figs. 1, 2, Zeiss D, oc. 4; figs. 3-6, Leitz water immers. 10, oc. 4; 
fig. 7, Leitz C, oc. 4; figs. 8-10 and 12, 13, Leitz water immers., 0c. 1; fig 
11, Zeiss A, oc. 4. 
PLATE XVII 
Taphrina entomospora Thaxter 
Fic. 1.—Portion of the lower surface of a leaf showing the ascus primordia 
lying between the cutis and the epidermis; one at the right beginning to develop. 
Fic. 2.—Portion of section showing asci 
Fic. 3.—A single ascus containing eight ascospores which have not yet 
= to 2 d. 
—A more mature ascus in which the spores have developed their 
dare appendages. 
5.—Three ancdaieinns in which the appendages are in process of 
oat 
Fic, fen ee mature or nearly mature spores with their appendages. 
